Improvement in water-wheels



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ALBERT M. MAYNARD, OF SAVOY, MASSACHUSETTS- Leners Patent No. 84,203,darai November 17, 186s.

IMPROVEMENT IN' WATER-WHEELS.

To all whom it 'mu/y conce/m:

Be it known that I, ALBERT M. MAYNARD, of Savoy, in the county ofBerkshire, and State of Massachusetts, have invented a new and usefulImprovement in Turbines; and I do hereby declare that the following is'afull, clear, and exact description thereof, which will enable othersskilled in the art to make and use the same, reference being had to theaccompanying drawings, forming part of this specication, in which-Figure l is a top view of my improved turbine, having a portion of theAgate-chamber broken away.

Figure 2 is a central vertical section ofthe turbinewheel and shaft.

Figure 3 is a central vertical section of the turbine-` Wheel,gate-chamber, and barrel.

The nature of this invention relates to those horizontal water-Wheelsknown as turbines.

It consists in the peculiar V-shaped formation of the turbine-buckets,arranged on the inner side of a cylinder-box, in combination with adiaphragm, through which the shaft passes, together' with other'devices, perfecting the-whole, as will hereinafter be more'fully setforth.

In the accompanyingplate of drawings, the cylindrical box is shown at aa, and contains the V-shaped buckets-b b b,r&c., which are affixed tothe side ofthe cylindrical box, as shown.

A horizontal plate, d, forms a diaphragm across the interior of the boxa a, and is axed .to the angles c cc, Sto., of the buckets, as shown.

This diaphragm is joined to the short cylinder or hoop e e, which isafxed to the lower part of the buckets, thereby forming the ordinarybucket-space, common to lmany tm'bines.

The hub fis afxed to the diaphragm, and serves to furnish a suicientbulk of metal for properly attaching the wheel to the shaft g. y

A cross-bar or bridge-tree, h, having a step-box', i, furnishes a stepor fixed gudgeon to the shaft, which latter has also an upper bearing,j, supported vby the arched braces k, as shown.

The turbine-wheel, as shown at fig. 2, revolves, without contact, withinthe external barrel A A, which serves as a scroll.

This barrel is constructed with a diaphragm, B, and vertical chutes, CO, three or more of which chutes are closed and opened by acorresponding number of pivoted gates, AD D, as shown.

These gates are connected, by rods Z l l, to a collar,

on, working freely on the sleeve a, rising from the diaphragm B, asshown. 4'

The collar m is formed with an arm, o, which terminates in a toothedsegment, p, engaging with the pinion q on the shaft lr, which latterbears the hand-wheel s, by which means the gates are opened'and closed,o1* adjusted, to admit the requisite supply of water.

The external barrel A A is flanged to and rests upon the shoulder a ofthe fiume, as shown.

When. the gates are opened, the water is forced between the chutes O 'CC, and impinges against the` angles c c c of the bucket. The impact ofthe water forces the turbine to revolve, and the downward action of thewater upon the lower parts ntf/1:, 85e., of the buckets causesadditional impetus to the wheel.

From practical trial, I have demonstrated its elijciency, and, byestimates, have determined its cheapness.

Itdispenses with the extensive scroll, and is complete in itself,requiring only to be placed in the fiume. Thus the labor and expenseusually attendingthe putting in o f turbines are avoided.

Having thus described my invention,

'I claim as new, and desire to secure by Letters Patent- 1 The chutes C,gates D, diaphragm B, and exter- ,nal barrel A A, in combination withthe turbine-wheel,

all constructed and arranged to operate substantially as described.

2. The combination and arrangement ofthe V-shaped buckets b, within thebox a, diaphragm (l, hoop c, external band A, diaphragm B,carryiug thesleeve n, the collar m., rods l, chutes G, and gates D, as hereindescribed, for the purpose specified.

' lALBERT M. MAYNARD.

Witnesses:

H. J. BLIss, DENNIS HAsxINs.

